CENTRAL WATER SYSTEM
Iowa - Community Water System - PWSID: IA3000099
System Information
| PWSID | IA3000099 |
| System Name | CENTRAL WATER SYSTEM |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 07 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Mar 4, 1980 |
| Last Reported | Mar 17, 2026 |
Location & Contact
| State | Iowa |
| City | OKOBOJI |
| ZIP Code | 51355 |
| Address | ATTN AARON VAN WYHE |
| Organization | CENTRAL WATER SYSTEM |
| Phone | 712-332-5000 |
Population & Service
| Population Served | 25 |
| Service Connections | 3 |
Drinking Water Violations (55)
This water system has 55 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 1, 2011 | Sep 30, 2011 | MR | No | No | - | - | - | Resolved | Sep 30, 2011 | - | |
| Sep 1, 2011 | Sep 30, 2011 | MR | No | No | - | - | - | Resolved | Sep 30, 2011 | - | |
| Sep 1, 2011 | Sep 30, 2011 | MR | No | No | - | - | - | Resolved | Sep 30, 2011 | - | |
| Aug 1, 1998 | Aug 31, 1998 | TT | Yes | No | - | - | - | Archived | Aug 31, 1998 | - | |
| Jan 1, 1995 | Jan 31, 1995 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Jan 31, 1995 | - | |
| Jan 1, 1995 | Jan 31, 1995 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Jan 31, 1995 | - | |
| Jan 1, 1995 | Jan 31, 1995 | MR | No | Yes | - | 0.003 mg/L | - | Resolved | Jan 31, 1995 | - | |
| Oct 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Oct 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Oct 1, 1994 | Dec 31, 1994 | MR | No | Yes | - | 0.004 mg/L | - | Resolved | Dec 31, 1994 | - | |
| Oct 1, 1989 | Sep 30, 1990 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1990 | - | |
| Oct 1, 1989 | Sep 30, 1990 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1990 | - | |
| Oct 1, 1989 | Sep 30, 1990 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1990 | - | |
| Oct 1, 1989 | Sep 30, 1990 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1990 | - | |
| Oct 1, 1989 | Sep 30, 1990 | MR | No | Yes | - | 10 mg/L | - | Resolved | Sep 30, 1990 | - | |
| Jul 1, 1989 | Jun 30, 1990 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 1990 | - | |
| Jul 1, 1989 | Jun 30, 1990 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 1990 | - | |
| Jul 1, 1989 | Jun 30, 1990 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 1990 | - | |
| Jul 1, 1989 | Jun 30, 1990 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 1990 | - | |
| Jul 1, 1989 | Jun 30, 1990 | MR | No | Yes | - | 10 mg/L | - | Resolved | Jun 30, 1990 | - | |
| Jul 1, 1988 | - | MR | No | No | - | TT | - | Resolved | Jul 12, 1989 | - | |
| Jul 1, 1988 | - | MR | No | No | - | TT | - | Resolved | Jul 12, 1989 | - | |
| Jan 1, 1988 | Dec 31, 1988 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1988 | - | |
| Jan 1, 1988 | Dec 31, 1988 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1988 | - | |
| Jan 1, 1988 | Dec 31, 1988 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1988 | - | |
| Jan 1, 1988 | Dec 31, 1988 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1988 | - | |
| Jan 1, 1988 | Dec 31, 1988 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 2 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 2 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 0.010 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 0.002 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 0.05 mg/L | - | Resolved | Sep 30, 1988 | - | |
| Oct 1, 1987 | Sep 30, 1988 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 1988 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.